[gimp] app: set default simulation intent to relative colorimetric.

[Jehan <jehanp src gnome org>]

commit 34ae339099b4fe5e2e668c92bf73f7ae10935b8c
Author: Jehan <jehan girinstud io>
Date:   Thu Aug 18 19:13:19 2022 +0200

    app: set default simulation intent to relative colorimetric.
    
    We should set these explicitly, otherwise it will usually default to the
    first of the enum, which is perceptual (which is usually not a proper
    choice).
    
    Relative colorimetric is usually the recommended default.

 app/core/gimpimage.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/app/core/gimpimage.c b/app/core/gimpimage.c
index 1599ff68c2..8f42942f22 100644
--- a/app/core/gimpimage.c
+++ b/app/core/gimpimage.c
@@ -783,6 +783,10 @@ gimp_image_init (GimpImage *image)
 
   private->metadata            = NULL;
 
+  private->simulation_profile  = NULL;
+  private->simulation_intent   = GIMP_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC;
+  private->simulation_bpc      = FALSE;
+
   private->dirty               = 1;
   private->dirty_time          = 0;
   private->undo_freeze_count   = 0;